Compléter Hometask #7 The environmentVersion en ligne Fill in the gaps. par Andreeva Teacher 1 layer warming rain species forest acid global alternative fossil greenhouse pollution recycling prefer ozone solar 1 . The tropical is being cut down . 2 . By glass , metal and paper , we save energy . 3 . Scientists have detected holes in the , which will allow harmful radiation to reach the surface of the Earth . 4 . Some gases trap heat in the Earth's atmosphere , causing the so - called effect . 5 . One result of is likely to be a disastrous rise in sea levels . 6 . Heavy industry causes a great deal of air . 7 . Solar energy and wind energy are sometimes called " " energy because they are used instead of coal , oil and gas . 8 . panels use the sun's energy to heat water . 9 . Human activity has destroyed many animal . 10 . People still their own cars to public transport . 11 . Coal , oil and gas are known as fuels . 12 . Damage has been caused to forests by rain .